The latest drivers can be found on lexmark.com. Go to www.lexmark.com and click on DRIVERS AND DOWNLOADS. Then use the DRIVER FINDER. In SEARCH BY MODEL, type in x6150 and you can choose a driver from there.

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1. reload the driver set for your printer.2. First uninstall the printer in the Windows environment.3. Update driver for the printer using the "device manager" to locate the printer ion LPT1 port. Right click go to "properties" select "update drivers.

Try using Foxit Reader instead of Acrobat Reader.. If the problem persist I Would consider an windows reinstall. After reinstalling windows and the driver for the printer and your pdf reader of choise and try again.If this time it works it means that was either a windows error or a conflict with another device.

If you are using Windows Vista, then you would need to update your drivers appropriate to your OS, update Vista specifically is USB ports drivers to the latest updates/patches. This is a common issue with Vista's USB ports. Microsoft has acknowledge the issues and has posted a fix here and here.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Sounds like your laptop isn't talking to your scanner. These scanners only work if it has access to a computer to store the scanned image. Check if your USB drivers are installed. Most times you can go to "Device Drivers" in Control Panel (Under the "System" icon) and right click USB to update drivers on the net. Depends how old your laptop is too. If that isn't the problem, try installing the drivers again, or search the net for newer versions.(Usually at the Lexmark site). But at the end of the day, you won't be able to scan till your laptop can recognize your Lexmark printer!!!!